[PATCH 5/5] drm/imx: don't destroy mode objects manually on driver unbind

[Lucas Stach]

Instead let drm_mode_config_cleanup() do the work when taking down
the master device. This requires all cleanup functions to be
properly hooked up to the mode object .destroy callback.

Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
---
 drivers/gpu/drm/bridge/dw-hdmi.c       | 3 ---
 drivers/gpu/drm/imx/imx-drm-core.c     | 4 ++--
 drivers/gpu/drm/imx/imx-ldb.c          | 6 ------
 drivers/gpu/drm/imx/imx-tve.c          | 3 ---
 drivers/gpu/drm/imx/ipuv3-crtc.c       | 9 ++++++---
 drivers/gpu/drm/imx/parallel-display.c | 3 ---
 6 files changed, 8 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/bridge/dw-hdmi.c b/drivers/gpu/drm/bridge/dw-hdmi.c
index c9d941283d30..5f97977f7e5c 100644
--- a/drivers/gpu/drm/bridge/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/dw-hdmi.c
@@ -1834,9 +1834,6 @@ void dw_hdmi_unbind(struct device *dev, struct device *master, void *data)
 	/* Disable all interrupts */
 	hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0);
 
-	hdmi->connector.funcs->destroy(&hdmi->connector);
-	hdmi->encoder->funcs->destroy(hdmi->encoder);
-
 	clk_disable_unprepare(hdmi->iahb_clk);
 	clk_disable_unprepare(hdmi->isfr_clk);
 	i2c_put_adapter(hdmi->ddc);
diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c
index 799a68976590..71e33666cae8 100644
--- a/drivers/gpu/drm/imx/imx-drm-core.c
+++ b/drivers/gpu/drm/imx/imx-drm-core.c
@@ -466,11 +466,11 @@ static void imx_drm_unbind(struct device *dev)
 	if (fbhelper)
 		drm_fbdev_cma_fini(fbhelper);
 
+	drm_mode_config_cleanup(drm);
+
 	component_unbind_all(drm->dev, drm);
 	dev_set_drvdata(dev, NULL);
 
-	drm_mode_config_cleanup(drm);
-
 	drm_dev_unref(drm);
 }
 
diff --git a/drivers/gpu/drm/imx/imx-ldb.c b/drivers/gpu/drm/imx/imx-ldb.c
index 9e117a654417..b49948d51110 100644
--- a/drivers/gpu/drm/imx/imx-ldb.c
+++ b/drivers/gpu/drm/imx/imx-ldb.c
@@ -674,12 +674,6 @@ static void imx_ldb_unbind(struct device *dev, struct device *master,
 		if (channel->panel)
 			drm_panel_detach(channel->panel);
 
-		if (!channel->connector.funcs)
-			continue;
-
-		channel->connector.funcs->destroy(&channel->connector);
-		channel->encoder.funcs->destroy(&channel->encoder);
-
 		kfree(channel->edid);
 		i2c_put_adapter(channel->ddc);
 	}
diff --git a/drivers/gpu/drm/imx/imx-tve.c b/drivers/gpu/drm/imx/imx-tve.c
index baf788121287..3973b2c85e2d 100644
--- a/drivers/gpu/drm/imx/imx-tve.c
+++ b/drivers/gpu/drm/imx/imx-tve.c
@@ -688,9 +688,6 @@ static void imx_tve_unbind(struct device *dev, struct device *master,
 {
 	struct imx_tve *tve = dev_get_drvdata(dev);
 
-	tve->connector.funcs->destroy(&tve->connector);
-	tve->encoder.funcs->destroy(&tve->encoder);
-
 	if (!IS_ERR(tve->dac_reg))
 		regulator_disable(tve->dac_reg);
 }
diff --git a/drivers/gpu/drm/imx/ipuv3-crtc.c b/drivers/gpu/drm/imx/ipuv3-crtc.c
index fc040417e1e8..4d5dbea48cef 100644
--- a/drivers/gpu/drm/imx/ipuv3-crtc.c
+++ b/drivers/gpu/drm/imx/ipuv3-crtc.c
@@ -228,9 +228,14 @@ put_vblank:
 	return ret;
 }
 
+static void ipu_crtc_cleanup(struct drm_crtc *crtc)
+{
+	imx_drm_remove_crtc(to_ipu_crtc(crtc)->imx_crtc);
+}
+
 static const struct drm_crtc_funcs ipu_crtc_funcs = {
 	.set_config = drm_crtc_helper_set_config,
-	.destroy = drm_crtc_cleanup,
+	.destroy = ipu_crtc_cleanup,
 	.page_flip = ipu_page_flip,
 };
 
@@ -551,8 +556,6 @@ static void ipu_drm_unbind(struct device *dev, struct device *master,
 {
 	struct ipu_crtc *ipu_crtc = dev_get_drvdata(dev);
 
-	imx_drm_remove_crtc(ipu_crtc->imx_crtc);
-
 	destroy_workqueue(ipu_crtc->flip_queue);
 	ipu_plane_put_resources(ipu_crtc->plane[0]);
 	ipu_put_resources(ipu_crtc);
diff --git a/drivers/gpu/drm/imx/parallel-display.c b/drivers/gpu/drm/imx/parallel-display.c
index 2d1fd02cd3d6..a1fa8fc91336 100644
--- a/drivers/gpu/drm/imx/parallel-display.c
+++ b/drivers/gpu/drm/imx/parallel-display.c
@@ -248,9 +248,6 @@ static void imx_pd_unbind(struct device *dev, struct device *master,
 {
 	struct imx_parallel_display *imxpd = dev_get_drvdata(dev);
 
-	imxpd->encoder.funcs->destroy(&imxpd->encoder);
-	imxpd->connector.funcs->destroy(&imxpd->connector);
-
 	kfree(imxpd->edid);
 }
 
-- 
2.8.1